Portion of a shoe upper



FIG. 1 is a front perspective view of a portion of a shoe upper showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is a top plan view thereof.

The uneven broken line immediately adjacent the shaded area represents an unclaimed boundary of the design. The uneven broken line showing of the remainder of the shoe is for illustrative purposes only and forms no part of the claimed design. The broken lines and the unshaded regions within the circles and partial circles do not form part of the claimed design. 

The ornamental design for a portion of a shoe upper, as shown and described. 